Design of Optoelectric Detection Circuit for Difference Absorption Gas Sensor-中国期刊网

摘要因为煤气的红外线的吸收光谱线宽仅仅是在1000占据几的来源紧张的几纳米，它是平的不到光的噪音来源。煤气的吸收的信号在噪音被沉没，因此直接与光谱吸收测量气体的集中是不可能的。根据CH_4气体的差别吸收系统的原则和参数，一个察觉电路由lock-inamplifier组成了被设计。实验结果显示察觉电路能满足整个系统的需求，并且限制集中是150X10~(-6)。

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Design of Optoelectric Detection Circuit for Difference Absorption Gas Sensor

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Design of Optoelectric Detection Circuit for Difference Absorption Gas Sensor

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